DataVXACS Energy LettersPaper
journal article·2022-06-10

Solution-Processed Hole-Doped SnSe Thermoelectric Thin-Film Devices for Low-Temperature Power Generation

Seung Hwae Heo, Jisu Yoo, Hyejeong Lee, Hanhwi Jang, Seungki Jo, Jeongmin Cho, Seongheon Baek, Seong Eun Yang, Da Hwi Gu, Hyun Jung Mun, Min-Wook Oh, Hosun Shin, Moon Kee Choi, Tae Joo Shin, Jae Sung Son

ACS Energy Letters· Volume 7· Issue 6
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Source abstract

Abstract

Owing to the increase in the demand for energy autonomy in electronic systems, there has been increased research interest in thermoelectric thin-film-based energy harvesters. However, the fabrication of such devices is challenging when considering material performance and integration processes. SnSe has emerged as among the best bulk thermoelectric materials capable of functioning at high temperatures; however, the thermoelectric performance of thin films is still limited. Herein, we present a solution-processed fabrication of high-performance Ag-doped SnSe thin films operable in a low-temperature range. The Ag doping induces the preferred crystallographic orientation and grain growth in the b–c plane (in-plane) of SnSe, consequently enhancing thermoelectric performance at low temperatures. Moreover, thin-film wrinkling and photolithography are employed in the fabrication of stretchable and patterned devices, in which power generation performance is then evaluated, thereby demonstrating the feasibility of the proposed thin films as an energy harvester in emerging electronic systems.
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Research context

OpenAlex topics: Advanced Thermoelectric Materials and Devices · Perovskite Materials and Applications · Perfectionism, Procrastination, Anxiety Studies

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Department of Materials Science and Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, Republic of Korea

Smart Devices Team, Korea Research Institute of Standards & Science (KRISS), Daejeon 34113, Republic of Korea

Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea

UNIST Central Research Facilities, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, Republic of Korea

Department of Materials Science and Engineering, Hanbat National University, Daejeon 34158, Republic of Korea

Graduate School of Semiconductor Materials & Devices, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, Republic of Korea

Center for Nanoparticle Research, Institute for Basic Science (IBS), Seoul 08826, Republic of Korea

Funding

National Research Foundation of Korea · Korea Research Institute of Standards and Science · Korea Medical Device Development Fund · Institute for Basic Science

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